Posted by **tasha** on Monday, February 19, 2007 at 2:05am.

How much work is needed to raise a 110-kg load of bricks 12m above the ground to a building under construction?

According to the law of conservation of energy, the work required equals the change in potential emergy.

To get the increase in potential energy, multiply the weight (M g) by the change in elevation (h). If M is in kg, g is in m/s^2 and h is in meters, the answer will be in Joules.

## Answer This Question

## Related Questions

- Physical Science - How much work is needed to raise a 110-kg load of bricks 12 m...
- PIs 267 - How much work is need to raise a 110 kg loag of bricks 12m above the ...
- PHYSICS NEED HELP FAST - A 150KG STEEL ROD IN A BUILDING UNDER CONSTRUCTION ...
- Science - A construction worker exerts 209N to move a load of bricks a distance ...
- Physics - A construction worker exerts 209N to move a load of bricks a distance ...
- Physics - A construction worker exerts 209N to move a load of bricks a distance ...
- Phyics help - I have a few physics questions: 1. How much mechanical work is ...
- Physical science - A simple lever is used to lift a heavy load. When a 58-N ...
- Physics - A 900W motor is used to lift 275.51kg of bricks a distance of 30, to ...
- Science - 1. A student lifts his 2.0-kg pet rock 2.8m straight up. He then lets ...

More Related Questions